./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/num_conversion_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22f8891fc10bb8c305de18eb9540699e7b8a01ce ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22f8891fc10bb8c305de18eb9540699e7b8a01ce ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:04:27,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:04:27,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:04:27,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:04:27,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:04:27,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:04:27,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:04:27,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:04:27,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:04:27,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:04:27,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:04:27,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:04:27,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:04:27,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:04:27,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:04:27,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:04:27,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:04:27,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:04:27,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:04:27,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:04:27,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:04:27,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:04:27,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:04:27,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:04:27,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:04:27,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:04:27,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:04:27,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:04:27,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:04:27,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:04:27,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:04:27,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:04:27,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:04:27,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:04:27,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:04:27,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:04:27,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:04:27,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:04:27,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:04:27,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:04:27,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:04:27,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:04:27,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:04:27,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:04:27,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:04:27,599 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:04:27,600 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:04:27,600 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:04:27,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:04:27,601 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:04:27,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:04:27,602 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:04:27,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:04:27,603 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:04:27,603 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:04:27,603 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:04:27,604 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:04:27,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:04:27,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:04:27,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:04:27,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:04:27,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:04:27,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:04:27,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:04:27,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:04:27,607 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:04:27,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:04:27,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:04:27,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:04:27,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:04:27,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:04:27,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:04:27,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:04:27,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:04:27,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:04:27,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:04:27,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:04:27,609 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:04:27,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:04:27,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:04:27,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:04:27,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:04:27,611 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22f8891fc10bb8c305de18eb9540699e7b8a01ce [2020-11-30 03:04:27,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:04:27,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:04:27,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:04:27,943 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:04:27,945 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:04:27,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/../../sv-benchmarks/c/bitvector/num_conversion_1.c [2020-11-30 03:04:28,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data/2b2ba9cfb/dc4adca86c5e4119b3be326a3f924fa0/FLAGa9424bd1f [2020-11-30 03:04:28,574 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:04:28,575 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/sv-benchmarks/c/bitvector/num_conversion_1.c [2020-11-30 03:04:28,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data/2b2ba9cfb/dc4adca86c5e4119b3be326a3f924fa0/FLAGa9424bd1f [2020-11-30 03:04:28,919 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data/2b2ba9cfb/dc4adca86c5e4119b3be326a3f924fa0 [2020-11-30 03:04:28,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:04:28,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:04:28,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:04:28,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:04:28,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:04:28,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:04:28" (1/1) ... [2020-11-30 03:04:28,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a71c14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:28, skipping insertion in model container [2020-11-30 03:04:28,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:04:28" (1/1) ... [2020-11-30 03:04:28,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:04:28,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:04:29,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:04:29,163 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:04:29,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:04:29,222 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:04:29,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29 WrapperNode [2020-11-30 03:04:29,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:04:29,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:04:29,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:04:29,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:04:29,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:04:29,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:04:29,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:04:29,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:04:29,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... [2020-11-30 03:04:29,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:04:29,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:04:29,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:04:29,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:04:29,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:04:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:04:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:04:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:04:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:04:29,805 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:04:29,806 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 03:04:29,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:04:29 BoogieIcfgContainer [2020-11-30 03:04:29,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:04:29,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:04:29,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:04:29,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:04:29,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:04:28" (1/3) ... [2020-11-30 03:04:29,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9a45a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:04:29, skipping insertion in model container [2020-11-30 03:04:29,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:29" (2/3) ... [2020-11-30 03:04:29,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9a45a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:04:29, skipping insertion in model container [2020-11-30 03:04:29,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:04:29" (3/3) ... [2020-11-30 03:04:29,818 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_1.c [2020-11-30 03:04:29,829 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:04:29,834 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:04:29,853 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:04:29,889 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:04:29,889 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:04:29,890 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:04:29,890 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:04:29,890 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:04:29,890 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:04:29,890 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:04:29,890 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:04:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-11-30 03:04:29,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 03:04:29,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:29,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 03:04:29,913 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:29,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:29,922 INFO L82 PathProgramCache]: Analyzing trace with hash 2131339, now seen corresponding path program 1 times [2020-11-30 03:04:29,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:04:29,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4062195] [2020-11-30 03:04:29,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:04:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:30,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:30,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4062195] [2020-11-30 03:04:30,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:04:30,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:04:30,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136580809] [2020-11-30 03:04:30,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:04:30,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:04:30,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:04:30,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:04:30,156 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-11-30 03:04:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:30,206 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-11-30 03:04:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:04:30,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 03:04:30,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:30,232 INFO L225 Difference]: With dead ends: 13 [2020-11-30 03:04:30,233 INFO L226 Difference]: Without dead ends: 6 [2020-11-30 03:04:30,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:04:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-11-30 03:04:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-30 03:04:30,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 03:04:30,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-30 03:04:30,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2020-11-30 03:04:30,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:30,279 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-11-30 03:04:30,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:04:30,279 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-11-30 03:04:30,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 03:04:30,280 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:30,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 03:04:30,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:04:30,281 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:30,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:30,285 INFO L82 PathProgramCache]: Analyzing trace with hash 66033034, now seen corresponding path program 1 times [2020-11-30 03:04:30,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:04:30,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306954124] [2020-11-30 03:04:30,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:04:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:30,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306954124] [2020-11-30 03:04:30,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387705085] [2020-11-30 03:04:30,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:30,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 03:04:30,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:30,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:30,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:30,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [400364976] [2020-11-30 03:04:30,674 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2020-11-30 03:04:30,674 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 03:04:30,679 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 03:04:30,686 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 03:04:30,687 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 03:04:31,275 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 03:04:31,562 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-11-30 03:04:31,752 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2020-11-30 03:04:31,916 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-11-30 03:04:31,919 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 03:04:31,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 03:04:31,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2020-11-30 03:04:31,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761999265] [2020-11-30 03:04:31,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 03:04:31,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:04:31,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 03:04:31,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:04:31,922 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 7 states. [2020-11-30 03:04:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:31,990 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-11-30 03:04:31,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:04:31,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 5 [2020-11-30 03:04:31,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:31,992 INFO L225 Difference]: With dead ends: 12 [2020-11-30 03:04:31,992 INFO L226 Difference]: Without dead ends: 9 [2020-11-30 03:04:31,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-11-30 03:04:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-30 03:04:31,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-30 03:04:31,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-30 03:04:31,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-30 03:04:31,996 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2020-11-30 03:04:31,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:31,996 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-30 03:04:31,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 03:04:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-30 03:04:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 03:04:31,997 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:31,997 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2020-11-30 03:04:32,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 03:04:32,208 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:32,209 INFO L82 PathProgramCache]: Analyzing trace with hash 56888651, now seen corresponding path program 2 times [2020-11-30 03:04:32,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:04:32,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924218807] [2020-11-30 03:04:32,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:04:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:32,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924218807] [2020-11-30 03:04:32,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647077947] [2020-11-30 03:04:32,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:32,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-30 03:04:32,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:32,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 03:04:32,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:32,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:32,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1422697656] [2020-11-30 03:04:32,607 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2020-11-30 03:04:32,608 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 03:04:32,608 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 03:04:32,608 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 03:04:32,609 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 03:04:32,873 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 03:04:32,959 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 03:04:32,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 03:04:32,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2020-11-30 03:04:32,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795816790] [2020-11-30 03:04:32,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 03:04:32,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:04:32,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 03:04:32,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-11-30 03:04:32,962 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 16 states. [2020-11-30 03:04:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:33,202 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-11-30 03:04:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 03:04:33,203 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 8 [2020-11-30 03:04:33,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:33,204 INFO L225 Difference]: With dead ends: 16 [2020-11-30 03:04:33,204 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 03:04:33,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-11-30 03:04:33,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 03:04:33,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 03:04:33,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 03:04:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-30 03:04:33,209 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2020-11-30 03:04:33,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:33,209 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-30 03:04:33,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 03:04:33,209 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-30 03:04:33,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:04:33,210 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:33,210 INFO L422 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1] [2020-11-30 03:04:33,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:33,420 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:33,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:33,421 INFO L82 PathProgramCache]: Analyzing trace with hash 639481099, now seen corresponding path program 3 times [2020-11-30 03:04:33,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:04:33,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459536343] [2020-11-30 03:04:33,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:04:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:04:33,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:04:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:04:33,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:04:33,560 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:04:33,561 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:04:33,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-30 03:04:33,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:04:33 BoogieIcfgContainer [2020-11-30 03:04:33,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:04:33,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:04:33,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:04:33,595 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:04:33,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:04:29" (3/4) ... [2020-11-30 03:04:33,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:04:33,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:04:33,601 INFO L168 Benchmark]: Toolchain (without parser) took 4675.94 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.6 MB in the beginning and 86.0 MB in the end (delta: -24.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:04:33,601 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 69.5 MB in the end (delta: 30.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:04:33,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.73 ms. Allocated memory is still 94.4 MB. Free memory was 61.5 MB in the beginning and 71.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:04:33,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.45 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:04:33,603 INFO L168 Benchmark]: Boogie Preprocessor took 58.95 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 69.3 MB in the end (delta: 813.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:04:33,604 INFO L168 Benchmark]: RCFGBuilder took 479.64 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 54.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 03:04:33,605 INFO L168 Benchmark]: TraceAbstraction took 3784.30 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 86.0 MB in the end (delta: -32.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:04:33,605 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 113.2 MB. Free memory is still 86.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:04:33,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 69.5 MB in the end (delta: 30.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.73 ms. Allocated memory is still 94.4 MB. Free memory was 61.5 MB in the beginning and 71.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.45 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.95 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 69.3 MB in the end (delta: 813.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 479.64 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 54.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3784.30 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 86.0 MB in the end (delta: -32.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.51 ms. Allocated memory is still 113.2 MB. Free memory is still 86.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftLeft at line 24, overapproximation of bitwiseAnd at line 25. Possible FailurePath: [L16] unsigned char x; [L17] unsigned char y; [L18] unsigned char c; [L20] x = 37 [L21] y = 0 [L22] c = 0 [L23] COND TRUE c < (unsigned char)8 [L24] unsigned char i = ((unsigned char)1) << c; [L25] unsigned char bit = x & i; [L26] COND TRUE bit != (unsigned char)0 [L27] y = y + i [L29] c = c + ((unsigned char)1) [L23] COND TRUE c < (unsigned char)8 [L24] unsigned char i = ((unsigned char)1) << c; [L25] unsigned char bit = x & i; [L26] COND TRUE bit != (unsigned char)0 [L27] y = y + i [L29] c = c + ((unsigned char)1) [L23] COND TRUE c < (unsigned char)8 [L24] unsigned char i = ((unsigned char)1) << c; [L25] unsigned char bit = x & i; [L26] COND FALSE !(bit != (unsigned char)0) [L29] c = c + ((unsigned char)1) [L23] COND TRUE c < (unsigned char)8 [L24] unsigned char i = ((unsigned char)1) << c; [L25] unsigned char bit = x & i; [L26] COND FALSE !(bit != (unsigned char)0) [L29] c = c + ((unsigned char)1) [L23] COND TRUE c < (unsigned char)8 [L24] unsigned char i = ((unsigned char)1) << c; [L25] unsigned char bit = x & i; [L26] COND FALSE !(bit != (unsigned char)0) [L29] c = c + ((unsigned char)1) [L23] COND TRUE c < (unsigned char)8 [L24] unsigned char i = ((unsigned char)1) << c; [L25] unsigned char bit = x & i; [L26] COND TRUE bit != (unsigned char)0 [L27] y = y + i [L29] c = c + ((unsigned char)1) [L23] COND TRUE c < (unsigned char)8 [L24] unsigned char i = ((unsigned char)1) << c; [L25] unsigned char bit = x & i; [L26] COND TRUE bit != (unsigned char)0 [L27] y = y + i [L29] c = c + ((unsigned char)1) [L23] COND TRUE c < (unsigned char)8 [L24] unsigned char i = ((unsigned char)1) << c; [L25] unsigned char bit = x & i; [L26] COND TRUE bit != (unsigned char)0 [L27] y = y + i [L29] c = c + ((unsigned char)1) [L23] COND FALSE !(c < (unsigned char)8) [L7] COND TRUE !(cond) [L3] __assert_fail("0", "num_conversion_1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 8, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 24 SDs, 0 SdLazy, 51 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1126 SizeOfPredicates, 2 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:04:36,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:04:36,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:04:36,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:04:36,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:04:36,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:04:36,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:04:36,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:04:36,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:04:36,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:04:36,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:04:36,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:04:36,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:04:36,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:04:36,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:04:36,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:04:36,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:04:36,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:04:36,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:04:36,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:04:36,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:04:36,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:04:36,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:04:36,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:04:36,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:04:36,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:04:36,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:04:36,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:04:36,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:04:36,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:04:36,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:04:36,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:04:36,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:04:36,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:04:36,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:04:36,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:04:36,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:04:36,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:04:36,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:04:36,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:04:36,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:04:36,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:04:36,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:04:36,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:04:36,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:04:36,637 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:04:36,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:04:36,637 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:04:36,638 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:04:36,638 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:04:36,638 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:04:36,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:04:36,639 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:04:36,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:04:36,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:04:36,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:04:36,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:04:36,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:04:36,641 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:04:36,641 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:04:36,641 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:04:36,642 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:04:36,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:04:36,642 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:04:36,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:04:36,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:04:36,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:04:36,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:04:36,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:04:36,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:04:36,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:04:36,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:04:36,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:04:36,645 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:04:36,645 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:04:36,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:04:36,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:04:36,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:04:36,646 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22f8891fc10bb8c305de18eb9540699e7b8a01ce [2020-11-30 03:04:37,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:04:37,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:04:37,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:04:37,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:04:37,128 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:04:37,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/../../sv-benchmarks/c/bitvector/num_conversion_1.c [2020-11-30 03:04:37,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data/1c92032b1/5dbe12a476ff4c90bd9ac350bee126dd/FLAGcdfac8390 [2020-11-30 03:04:37,894 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:04:37,895 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/sv-benchmarks/c/bitvector/num_conversion_1.c [2020-11-30 03:04:37,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data/1c92032b1/5dbe12a476ff4c90bd9ac350bee126dd/FLAGcdfac8390 [2020-11-30 03:04:38,255 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/data/1c92032b1/5dbe12a476ff4c90bd9ac350bee126dd [2020-11-30 03:04:38,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:04:38,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:04:38,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:04:38,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:04:38,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:04:38,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f040992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38, skipping insertion in model container [2020-11-30 03:04:38,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:04:38,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:04:38,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:04:38,461 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:04:38,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:04:38,500 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:04:38,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38 WrapperNode [2020-11-30 03:04:38,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:04:38,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:04:38,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:04:38,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:04:38,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:04:38,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:04:38,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:04:38,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:04:38,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... [2020-11-30 03:04:38,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:04:38,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:04:38,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:04:38,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:04:38,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:04:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:04:38,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:04:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:04:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:04:39,206 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:04:39,207 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 03:04:39,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:04:39 BoogieIcfgContainer [2020-11-30 03:04:39,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:04:39,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:04:39,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:04:39,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:04:39,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:04:38" (1/3) ... [2020-11-30 03:04:39,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167592b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:04:39, skipping insertion in model container [2020-11-30 03:04:39,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:04:38" (2/3) ... [2020-11-30 03:04:39,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167592b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:04:39, skipping insertion in model container [2020-11-30 03:04:39,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:04:39" (3/3) ... [2020-11-30 03:04:39,224 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_1.c [2020-11-30 03:04:39,239 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:04:39,245 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:04:39,260 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:04:39,307 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:04:39,307 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:04:39,308 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:04:39,308 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:04:39,308 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:04:39,309 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:04:39,309 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:04:39,309 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:04:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-11-30 03:04:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 03:04:39,337 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:39,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 03:04:39,338 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:39,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:39,346 INFO L82 PathProgramCache]: Analyzing trace with hash 889968487, now seen corresponding path program 1 times [2020-11-30 03:04:39,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:04:39,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093846359] [2020-11-30 03:04:39,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 03:04:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:39,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 03:04:39,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:39,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:39,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093846359] [2020-11-30 03:04:39,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:04:39,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 03:04:39,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351049165] [2020-11-30 03:04:39,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:04:39,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:04:39,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:04:39,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:04:39,602 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-11-30 03:04:39,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:39,624 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-11-30 03:04:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:04:39,626 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-30 03:04:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:39,649 INFO L225 Difference]: With dead ends: 22 [2020-11-30 03:04:39,663 INFO L226 Difference]: Without dead ends: 9 [2020-11-30 03:04:39,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:04:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-30 03:04:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-30 03:04:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-30 03:04:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-11-30 03:04:39,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2020-11-30 03:04:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:39,715 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-11-30 03:04:39,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:04:39,715 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-11-30 03:04:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 03:04:39,716 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:39,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 03:04:39,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 03:04:39,932 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:39,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:39,933 INFO L82 PathProgramCache]: Analyzing trace with hash 889640786, now seen corresponding path program 1 times [2020-11-30 03:04:39,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:04:39,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550999753] [2020-11-30 03:04:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 03:04:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:40,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 03:04:40,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:40,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:40,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:40,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550999753] [2020-11-30 03:04:40,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:04:40,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 03:04:40,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354971537] [2020-11-30 03:04:40,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:04:40,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:04:40,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:04:40,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:04:40,086 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2020-11-30 03:04:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:40,124 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2020-11-30 03:04:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:04:40,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-30 03:04:40,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:40,126 INFO L225 Difference]: With dead ends: 17 [2020-11-30 03:04:40,126 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 03:04:40,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:04:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 03:04:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 03:04:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 03:04:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-11-30 03:04:40,131 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 6 [2020-11-30 03:04:40,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:40,131 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-11-30 03:04:40,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:04:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-30 03:04:40,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:04:40,132 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:40,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 03:04:40,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 03:04:40,334 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:40,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:40,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1950053902, now seen corresponding path program 1 times [2020-11-30 03:04:40,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:04:40,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490471448] [2020-11-30 03:04:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 03:04:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:40,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 03:04:40,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 03:04:40,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 03:04:40,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490471448] [2020-11-30 03:04:40,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:04:40,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 03:04:40,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465474422] [2020-11-30 03:04:40,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:04:40,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:04:40,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:04:40,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:04:40,489 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 6 states. [2020-11-30 03:04:40,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:40,609 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2020-11-30 03:04:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:04:40,610 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-11-30 03:04:40,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:40,611 INFO L225 Difference]: With dead ends: 28 [2020-11-30 03:04:40,612 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 03:04:40,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:04:40,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 03:04:40,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2020-11-30 03:04:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 03:04:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2020-11-30 03:04:40,617 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 12 [2020-11-30 03:04:40,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:40,618 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-11-30 03:04:40,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:04:40,618 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-30 03:04:40,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:04:40,619 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:40,619 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:04:40,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 03:04:40,820 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:40,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:40,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1664855024, now seen corresponding path program 1 times [2020-11-30 03:04:40,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:04:40,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9401881] [2020-11-30 03:04:40,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 03:04:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:40,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 03:04:40,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:40,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:40,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:40,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9401881] [2020-11-30 03:04:40,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1339072208] [2020-11-30 03:04:40,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:04:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:41,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 03:04:41,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:41,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:41,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829358833] [2020-11-30 03:04:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:04:41,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 03:04:41,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:41,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:41,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-11-30 03:04:41,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 6] total 10 [2020-11-30 03:04:41,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914273334] [2020-11-30 03:04:41,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 03:04:41,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:04:41,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 03:04:41,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:04:41,290 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 10 states. [2020-11-30 03:04:41,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:41,543 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2020-11-30 03:04:41,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 03:04:41,543 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-30 03:04:41,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:41,544 INFO L225 Difference]: With dead ends: 29 [2020-11-30 03:04:41,544 INFO L226 Difference]: Without dead ends: 25 [2020-11-30 03:04:41,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-11-30 03:04:41,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-30 03:04:41,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-30 03:04:41,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-30 03:04:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2020-11-30 03:04:41,551 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 12 [2020-11-30 03:04:41,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:41,564 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-11-30 03:04:41,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 03:04:41,565 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-11-30 03:04:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 03:04:41,566 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:41,567 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:04:42,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:42,182 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:42,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:42,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2085526576, now seen corresponding path program 2 times [2020-11-30 03:04:42,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:04:42,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707502427] [2020-11-30 03:04:42,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-30 03:04:42,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 03:04:42,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:42,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 03:04:42,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-30 03:04:42,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:42,479 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-30 03:04:42,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707502427] [2020-11-30 03:04:42,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1683849697] [2020-11-30 03:04:42,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:04:42,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 03:04:42,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:42,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 03:04:42,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-30 03:04:42,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-30 03:04:42,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108554805] [2020-11-30 03:04:42,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:42,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 03:04:42,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:42,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 03:04:42,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:42,746 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-30 03:04:42,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-30 03:04:42,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-11-30 03:04:42,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 13 [2020-11-30 03:04:42,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572650321] [2020-11-30 03:04:42,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-30 03:04:42,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:04:42,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-30 03:04:42,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-11-30 03:04:42,916 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 13 states. [2020-11-30 03:04:43,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:43,382 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2020-11-30 03:04:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-30 03:04:43,389 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-11-30 03:04:43,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:43,391 INFO L225 Difference]: With dead ends: 54 [2020-11-30 03:04:43,391 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 03:04:43,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2020-11-30 03:04:43,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 03:04:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2020-11-30 03:04:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 03:04:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-11-30 03:04:43,404 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 24 [2020-11-30 03:04:43,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:43,405 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-11-30 03:04:43,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-30 03:04:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-11-30 03:04:43,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 03:04:43,408 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:43,409 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 1, 1, 1, 1, 1, 1] [2020-11-30 03:04:44,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk,8 mathsat -unsat_core_generation=3,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:44,013 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:44,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:44,013 INFO L82 PathProgramCache]: Analyzing trace with hash -986835344, now seen corresponding path program 3 times [2020-11-30 03:04:44,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:04:44,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470153397] [2020-11-30 03:04:44,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-30 03:04:44,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-30 03:04:44,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:44,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 03:04:44,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:44,184 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-30 03:04:44,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:44,389 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-30 03:04:44,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470153397] [2020-11-30 03:04:44,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [23208412] [2020-11-30 03:04:44,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:04:44,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-30 03:04:44,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:44,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 03:04:44,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-30 03:04:44,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-30 03:04:44,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75932958] [2020-11-30 03:04:44,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:44,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-30 03:04:44,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:44,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 03:04:44,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-30 03:04:44,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:44,878 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-30 03:04:44,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-11-30 03:04:44,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2020-11-30 03:04:44,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900781672] [2020-11-30 03:04:44,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 03:04:44,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:04:44,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 03:04:44,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:04:44,884 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 10 states. [2020-11-30 03:04:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:45,228 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2020-11-30 03:04:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 03:04:45,229 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-11-30 03:04:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:45,230 INFO L225 Difference]: With dead ends: 53 [2020-11-30 03:04:45,230 INFO L226 Difference]: Without dead ends: 31 [2020-11-30 03:04:45,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-11-30 03:04:45,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-30 03:04:45,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-30 03:04:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 03:04:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-11-30 03:04:45,245 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 24 [2020-11-30 03:04:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:45,246 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-11-30 03:04:45,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 03:04:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-11-30 03:04:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 03:04:45,249 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:45,249 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 5, 3, 1, 1, 1, 1, 1, 1] [2020-11-30 03:04:45,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2020-11-30 03:04:45,866 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:45,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:45,867 INFO L82 PathProgramCache]: Analyzing trace with hash -29656432, now seen corresponding path program 4 times [2020-11-30 03:04:45,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:04:45,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92496764] [2020-11-30 03:04:45,868 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-11-30 03:04:45,927 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 03:04:45,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:45,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 03:04:45,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-30 03:04:46,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:47,208 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-30 03:04:47,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92496764] [2020-11-30 03:04:47,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [384085105] [2020-11-30 03:04:47,209 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:04:47,350 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 03:04:47,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:47,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 03:04:47,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-30 03:04:47,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:47,469 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-30 03:04:47,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797992232] [2020-11-30 03:04:47,470 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:04:47,540 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 03:04:47,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:47,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 27 conjunts are in the unsatisfiable core [2020-11-30 03:04:47,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:47,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:04:50,504 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:04:50,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-11-30 03:04:50,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15, 15, 19, 20] total 49 [2020-11-30 03:04:50,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058571701] [2020-11-30 03:04:50,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-11-30 03:04:50,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:04:50,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-11-30 03:04:50,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1939, Unknown=0, NotChecked=0, Total=2352 [2020-11-30 03:04:50,512 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 49 states. [2020-11-30 03:04:52,006 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 124 [2020-11-30 03:04:52,423 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-11-30 03:04:53,413 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 121 [2020-11-30 03:04:53,810 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-11-30 03:04:54,123 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-30 03:04:55,397 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 21 [2020-11-30 03:04:56,438 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 125 [2020-11-30 03:04:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:04:57,464 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2020-11-30 03:04:57,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-30 03:04:57,469 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 30 [2020-11-30 03:04:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:04:57,470 INFO L225 Difference]: With dead ends: 80 [2020-11-30 03:04:57,470 INFO L226 Difference]: Without dead ends: 62 [2020-11-30 03:04:57,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 123 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1018, Invalid=4094, Unknown=0, NotChecked=0, Total=5112 [2020-11-30 03:04:57,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-30 03:04:57,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-11-30 03:04:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-30 03:04:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2020-11-30 03:04:57,489 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 30 [2020-11-30 03:04:57,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:04:57,489 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2020-11-30 03:04:57,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-11-30 03:04:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2020-11-30 03:04:57,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-30 03:04:57,491 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:04:57,491 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 7, 4, 1, 1, 1, 1, 1, 1] [2020-11-30 03:04:58,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:04:58,108 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:04:58,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:04:58,108 INFO L82 PathProgramCache]: Analyzing trace with hash -704967655, now seen corresponding path program 5 times [2020-11-30 03:04:58,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:04:58,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360257942] [2020-11-30 03:04:58,109 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-11-30 03:04:58,164 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2020-11-30 03:04:58,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:04:58,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 23 conjunts are in the unsatisfiable core [2020-11-30 03:04:58,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:04:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 103 proven. 69 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 03:04:59,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:05:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 150 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 03:05:01,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360257942] [2020-11-30 03:05:01,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1383805203] [2020-11-30 03:05:01,327 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:05:01,439 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2020-11-30 03:05:01,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 03:05:01,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 03:05:01,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:05:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 03:05:02,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:05:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 03:05:03,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2020-11-30 03:05:03,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 18] imperfect sequences [20, 20] total 54 [2020-11-30 03:05:03,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345608869] [2020-11-30 03:05:03,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-11-30 03:05:03,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:05:03,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-11-30 03:05:03,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=784, Invalid=2078, Unknown=0, NotChecked=0, Total=2862 [2020-11-30 03:05:03,259 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand 34 states. [2020-11-30 03:05:03,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:05:03,486 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2020-11-30 03:05:03,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-30 03:05:03,488 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 39 [2020-11-30 03:05:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:05:03,488 INFO L225 Difference]: With dead ends: 58 [2020-11-30 03:05:03,488 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:05:03,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=784, Invalid=2078, Unknown=0, NotChecked=0, Total=2862 [2020-11-30 03:05:03,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:05:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:05:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:05:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:05:03,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-11-30 03:05:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:05:03,492 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:05:03,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-11-30 03:05:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:05:03,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:05:03,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3,18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 03:05:03,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:05:04,103 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 270 [2020-11-30 03:05:05,410 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 267 DAG size of output: 121 [2020-11-30 03:05:05,416 INFO L277 CegarLoopResult]: At program point L33(lines 14 34) the Hoare annotation is: true [2020-11-30 03:05:05,416 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:05:05,417 INFO L270 CegarLoopResult]: At program point L23-2(lines 23 30) the Hoare annotation is: (let ((.cse0 (= (_ bv37 8) ULTIMATE.start_main_~y~0)) (.cse19 (exists ((v_ULTIMATE.start_main_~c~0_56 (_ BitVec 8))) (let ((.cse20 ((_ zero_extend 24) v_ULTIMATE.start_main_~c~0_56))) (and (= ((_ extract 7 0) (bvadd .cse20 (_ bv1 32))) ULTIMATE.start_main_~c~0) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv37 32) ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse20)))))) (_ bv0 32))))))) (.cse10 (= (_ bv5 8) ULTIMATE.start_main_~y~0)) (.cse11 (= (_ bv1 8) ULTIMATE.start_main_~y~0)) (.cse9 (= (_ bv37 8) ULTIMATE.start_main_~x~0))) (or (and .cse0 (exists ((v_ULTIMATE.start_main_~c~0_125 (_ BitVec 8)) (ULTIMATE.start_main_~x~0 (_ BitVec 8))) (let ((.cse6 ((_ zero_extend 24) v_ULTIMATE.start_main_~c~0_125))) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse6 (_ bv1 32)))))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 (_ bv1 32)))))) (let ((.cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse1 (_ bv1 32)))))) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse7 (_ bv1 32)))))) (let ((.cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse3 (_ bv1 32)))))) (let ((.cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse8 (_ bv1 32))))) (.cse2 ((_ zero_extend 24) ULTIMATE.start_main_~x~0))) (and (bvslt .cse1 (_ bv8 32)) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse3)))))) (_ bv0 32))) (bvslt .cse4 (_ bv8 32)) (= ((_ extract 7 0) (bvadd .cse4 (_ bv1 32))) ULTIMATE.start_main_~c~0) (bvslt .cse5 (_ bv8 32)) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse6))))))) (bvslt .cse7 (_ bv8 32)) (bvslt .cse8 (_ bv8 32)) (bvslt .cse6 (_ bv8 32))))))))))) (= (_ bv0 32) ((_ zero_extend 24) ULTIMATE.start_main_~bit~0)) .cse9) (and .cse10 (= (_ bv4 8) ULTIMATE.start_main_~c~0) .cse9) (and (= (_ bv2 8) ULTIMATE.start_main_~c~0) .cse9 .cse11) (and .cse0 .cse9 (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 8)) (v_ULTIMATE.start_main_~c~0_125 (_ BitVec 8))) (let ((.cse16 ((_ zero_extend 24) v_ULTIMATE.start_main_~c~0_125))) (let ((.cse15 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse16 (_ bv1 32)))))) (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse15 (_ bv1 32)))))) (let ((.cse17 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse12 (_ bv1 32)))))) (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse17 (_ bv1 32)))))) (let ((.cse13 ((_ zero_extend 24) ULTIMATE.start_main_~x~0)) (.cse18 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse14 (_ bv1 32)))))) (and (bvslt .cse12 (_ bv8 32)) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse14)))))) (_ bv0 32))) (bvslt .cse15 (_ bv8 32)) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) .cse16))))))) (bvslt .cse17 (_ bv8 32)) (= ((_ extract 7 0) (bvadd .cse18 (_ bv1 32))) ULTIMATE.start_main_~c~0) (bvslt .cse18 (_ bv8 32)) (bvslt .cse16 (_ bv8 32)))))))))) .cse19) (and .cse10 (= (_ bv0 8) (bvadd ULTIMATE.start_main_~bit~0 (_ bv252 8))) .cse9 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ULTIMATE.start_main_~x~0) ((_ zero_extend 24) ((_ extract 7 0) (bvshl (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ULTIMATE.start_main_~c~0) (_ bv1 32)))) (_ bv1 32)))))))))) (_ bv0 32))) .cse19) (and .cse10 .cse9 (= (_ bv5 8) ULTIMATE.start_main_~c~0)) (and (= (_ bv0 8) (bvadd ULTIMATE.start_main_~bit~0 (_ bv255 8))) (= (_ bv1 8) ULTIMATE.start_main_~c~0) .cse9 .cse11) (and (= (_ bv0 8) ULTIMATE.start_main_~c~0) .cse9 (= (_ bv0 8) ULTIMATE.start_main_~y~0)))) [2020-11-30 03:05:05,417 INFO L274 CegarLoopResult]: For program point L23-3(lines 23 30) no Hoare annotation was computed. [2020-11-30 03:05:05,417 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-11-30 03:05:05,417 INFO L277 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2020-11-30 03:05:05,417 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 03:05:05,417 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 03:05:05,417 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:05:05,417 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 03:05:05,418 INFO L274 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-11-30 03:05:05,418 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2020-11-30 03:05:05,418 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 03:05:05,418 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-11-30 03:05:05,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,442 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,442 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,442 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,479 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,483 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,483 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:05:05 BoogieIcfgContainer [2020-11-30 03:05:05,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:05:05,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:05:05,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:05:05,501 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:05:05,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:04:39" (3/4) ... [2020-11-30 03:05:05,506 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:05:05,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 03:05:05,521 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 03:05:05,521 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:05:05,522 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:05:05,558 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((37bv8 == y && (\exists v_ULTIMATE.start_main_~c~0_125 : bv8, ULTIMATE.start_main_~x~0 : bv8 :: (((((((~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(ULTIMATE.start_main_~x~0), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]))[7:0]) == 0bv32)) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0] == c) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 8bv32)) && 0bv32 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(ULTIMATE.start_main_~x~0), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125))[7:0]))[7:0])) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvslt32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 8bv32))) && 0bv32 == ~zero_extendFrom8To32(bit)) && 37bv8 == x) || ((5bv8 == y && 4bv8 == c) && 37bv8 == x)) || ((2bv8 == c && 37bv8 == x) && 1bv8 == y)) || (((37bv8 == y && 37bv8 == x) && (\exists ULTIMATE.start_main_~x~0 : bv8, v_ULTIMATE.start_main_~c~0_125 : bv8 :: ((((((~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(ULTIMATE.start_main_~x~0), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]))[7:0]) == 0bv32)) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 8bv32)) && 0bv32 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(ULTIMATE.start_main_~x~0), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125))[7:0]))[7:0])) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0] == c) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvslt32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 8bv32))) && (\exists v_ULTIMATE.start_main_~c~0_56 : bv8 :: ~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_56), 1bv32)[7:0] == c && !(~zero_extendFrom8To32(~bvand32(37bv32, ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_56))[7:0]))[7:0]) == 0bv32)))) || ((((5bv8 == y && 0bv8 == ~bvadd64(bit, 252bv8)) && 37bv8 == x) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(x), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(c), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]))[7:0]) == 0bv32)) && (\exists v_ULTIMATE.start_main_~c~0_56 : bv8 :: ~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_56), 1bv32)[7:0] == c && !(~zero_extendFrom8To32(~bvand32(37bv32, ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_56))[7:0]))[7:0]) == 0bv32)))) || ((5bv8 == y && 37bv8 == x) && 5bv8 == c)) || (((0bv8 == ~bvadd64(bit, 255bv8) && 1bv8 == c) && 37bv8 == x) && 1bv8 == y)) || ((0bv8 == c && 37bv8 == x) && 0bv8 == y) [2020-11-30 03:05:05,579 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3d418da4-0bbf-4c3a-9dfe-704a0c36f130/bin/utaipan/witness.graphml [2020-11-30 03:05:05,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:05:05,581 INFO L168 Benchmark]: Toolchain (without parser) took 27321.29 ms. Allocated memory was 54.5 MB in the beginning and 92.3 MB in the end (delta: 37.7 MB). Free memory was 32.4 MB in the beginning and 58.2 MB in the end (delta: -25.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-11-30 03:05:05,582 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 37.4 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:05:05,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.85 ms. Allocated memory is still 54.5 MB. Free memory was 32.2 MB in the beginning and 36.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:05:05,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.69 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 34.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:05:05,583 INFO L168 Benchmark]: Boogie Preprocessor took 82.00 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 34.8 MB in the beginning and 59.3 MB in the end (delta: -24.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:05:05,584 INFO L168 Benchmark]: RCFGBuilder took 582.22 ms. Allocated memory is still 75.5 MB. Free memory was 59.3 MB in the beginning and 47.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:05:05,585 INFO L168 Benchmark]: TraceAbstraction took 26289.00 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 47.3 MB in the beginning and 60.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:05:05,585 INFO L168 Benchmark]: Witness Printer took 78.23 ms. Allocated memory is still 92.3 MB. Free memory was 60.3 MB in the beginning and 58.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:05:05,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 37.4 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 240.85 ms. Allocated memory is still 54.5 MB. Free memory was 32.2 MB in the beginning and 36.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.69 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 34.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.00 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 34.8 MB in the beginning and 59.3 MB in the end (delta: -24.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 582.22 ms. Allocated memory is still 75.5 MB. Free memory was 59.3 MB in the beginning and 47.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26289.00 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 47.3 MB in the beginning and 60.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. * Witness Printer took 78.23 ms. Allocated memory is still 92.3 MB. Free memory was 60.3 MB in the beginning and 58.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant [2020-11-30 03:05:05,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,612 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,612 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,612 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-11-30 03:05:05,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_125,QUANTIFIED] [2020-11-30 03:05:05,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] [2020-11-30 03:05:05,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~c~0_56,QUANTIFIED] Derived loop invariant: (((((((((37bv8 == y && (\exists v_ULTIMATE.start_main_~c~0_125 : bv8, ULTIMATE.start_main_~x~0 : bv8 :: (((((((~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(ULTIMATE.start_main_~x~0), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]))[7:0]) == 0bv32)) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0] == c) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 8bv32)) && 0bv32 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(ULTIMATE.start_main_~x~0), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125))[7:0]))[7:0])) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvslt32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 8bv32))) && 0bv32 == ~zero_extendFrom8To32(bit)) && 37bv8 == x) || ((5bv8 == y && 4bv8 == c) && 37bv8 == x)) || ((2bv8 == c && 37bv8 == x) && 1bv8 == y)) || (((37bv8 == y && 37bv8 == x) && (\exists ULTIMATE.start_main_~x~0 : bv8, v_ULTIMATE.start_main_~c~0_125 : bv8 :: ((((((~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(ULTIMATE.start_main_~x~0), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]))[7:0]) == 0bv32)) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 8bv32)) && 0bv32 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(ULTIMATE.start_main_~x~0), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125))[7:0]))[7:0])) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0] == c) && ~bvslt32(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 1bv32)[7:0]), 8bv32)) && ~bvslt32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_125), 8bv32))) && (\exists v_ULTIMATE.start_main_~c~0_56 : bv8 :: ~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_56), 1bv32)[7:0] == c && !(~zero_extendFrom8To32(~bvand32(37bv32, ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_56))[7:0]))[7:0]) == 0bv32)))) || ((((5bv8 == y && 0bv8 == ~bvadd64(bit, 252bv8)) && 37bv8 == x) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(x), ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(~bvadd64(~zero_extendFrom8To32(c), 1bv32)[7:0]), 1bv32)[7:0]))[7:0]))[7:0]) == 0bv32)) && (\exists v_ULTIMATE.start_main_~c~0_56 : bv8 :: ~bvadd64(~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_56), 1bv32)[7:0] == c && !(~zero_extendFrom8To32(~bvand32(37bv32, ~zero_extendFrom8To32(~bvshl32(1bv32, ~zero_extendFrom8To32(v_ULTIMATE.start_main_~c~0_56))[7:0]))[7:0]) == 0bv32)))) || ((5bv8 == y && 37bv8 == x) && 5bv8 == c)) || (((0bv8 == ~bvadd64(bit, 255bv8) && 1bv8 == c) && 37bv8 == x) && 1bv8 == y)) || ((0bv8 == c && 37bv8 == x) && 0bv8 == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.6s, OverallIterations: 8, TraceHistogramMax: 11, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 76 SDtfs, 351 SDslu, 337 SDs, 0 SdLazy, 829 SolverSat, 201 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 753 GetRequests, 570 SyntacticMatches, 8 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2297 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 16 NumberOfFragments, 458 HoareAnnotationTreeSize, 3 FomulaSimplifications, 127 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1222 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 372 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 710 ConstructedInterpolants, 95 QuantifiedInterpolants, 398725 SizeOfPredicates, 71 NumberOfNonLiveVariables, 836 ConjunctsInSsa, 165 ConjunctsInUnsatCore, 34 InterpolantComputations, 8 PerfectInterpolantSequences, 1125/1908 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...